Cows belching and breaking wind cause methane pollution, but British scientists say they have developed a diet to make pastures smell like roses — almost.

“In some experiments we get a 70 percent decrease (in methane emissions), which is quite staggering,” biochemist John Wallace told Reuters in a telephone interview.

At least they didn’t take the New Zealand approach:

In New Zealand the government in 2003 proposed a flatulence tax, with methane emitted by farm animals responsible for more than half the country’s greenhouse gases. The plan was ultimately withdrawn after widespread protests.

Giving people a whiff of a key chemical can make them more inclined to trust strangers with their cash, a new study reveals. Just three puffs of a nasal spray containing a hormone called oxytocin increased the chance that people would part with their money.

The research centred around a game in which an “investor” player gives part or all of his money on blind trust to an anonymous “trustee” player who earns interest on the combination of his own money and the invested sum. But the investor is told there is no obligation for the “trustee” to give any money back at all – they risk losing any money they choose to invest.

Michael Kosfeld at the University of Zurich, Switzerland, who led the study found that investors gave away their money far more willingly if they had sniffed oxytocin than if they had sniffed a placebo. But this extra willingness disappeared when the trustee’s role was computerised, rather than carried out by another human, confirming that the effect was interpersonal, and not simply a general willingness to gamble.

The good news:

But could it be used to con people? Kosfeld doubts it, because it takes nearly an hour for the hormone to reach the brain.

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"You may not be willing to admit that you resemble an ape; if your thousandth ancestor is more like an ape than you are, you may, if you wish, call it a coincidence. But if that thousandth ancestor's forebears become progressively more simian as you trace back the geneological lines, you will have to admit that somewhere in your family tree there squats an ape." Earnest Hooten

Charles Darwin

"But I had gradually come, by this time, to see that the Old Testament from its manifestly false history of the world, with the Tower of Babel, the rainbow at sign, etc., etc., and from its attributing to God the feelings of a revengeful tyrant, was no more to be trusted than the sacred books of the Hindoos, or the beliefs of any barbarian." Charles Darwin: The Autobiography